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stat.ML2026
Finite-Sample Performance of Gradient Descent in Logistic Regression with Gaussian Design
Junren Chen, Arya Mazumdar
We consider the parameter estimation problem in logistic regression with Gaussian design: the estimation of a fixed unknown parameter () fro…
stat.ML2024
A Parameter-Free Two-Bit Covariance Estimator with Improved Operator Norm Error Rate
Junren Chen, Michael K. Ng
A covariance matrix estimator using two bits per entry was recently developed by Dirksen, Maly and Rauhut [Annals of Statistics, 50(6), pp. 3538-3562]. The estimator achieves near…